See: https://www.npr.org/2019/01/17/686207495/how-strong-is-the-islamic-state-in-syria?utm_source=Pew+Research+Center&utm_campaign=f64d188abb-EMAIL_CAMPAIGN_2019_01_18_03_18&utm_medium=email&utm_term=0_3e953b9b70-f64d188abb-400098233
The Great Dialogue